The three-phase four wire guide rail electronic energy meter is designed with advanced energy metering chip and mature software technology. The meter meets the relevant technical requirements of GB/T17215.321-2008 Class 1 and Class 2 （China standard）Static AC Active Energy Meters; It can directly or indirectly accurately measure the power consumption of three-phase loads. The 8-bit LCD display shows the functional power consumption. It has the characteristics of good reliability, small size, light weight, beautiful appearance, advanced technology, 35mm DIN standard rail installation, etc.; it also has good anti electromagnetic interference, low self-consumption and power saving, high precision, high overload, high stability, electricity theft prevention, and long life.

The meter is applicable to measuring three-phase AC active electric energy with rated frequency of 50Hz or 60Hz. It is used for fixed installation indoors, and is applicable to the environment temperature not exceeding - 25~+55 ℃, the relative humidity not exceeding 95%, and the air does not contain corrosive gas and avoid the impact of dust, mold, salt fog, condensation, insects, etc.